Berlei Support Factor 3 – High Impact. Reduces breast bounce by up to 50%. Our most popular sports underwire bra, is a high impact bra designed with fun vibrant contrast colours for a supportive workout. Mesh in the cup and back provides breathable panels for a cooler workout. Cotton lined cups provide added comfort during exercise. Cross over straps deliver additional support and versatility under clothing. Your perfect bra for high impact sports such as tennis, basketball and netball.